Coverage for python/lsst/daf/butler/core/datasets/association.py: 77%
18 statements
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« prev ^ index » next coverage.py v7.2.5, created at 2023-05-17 09:33 +0000
1# This file is part of daf_butler.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <http://www.gnu.org/licenses/>.
22from __future__ import annotations
24from dataclasses import dataclass
25from typing import Any, Optional
27from ..timespan import Timespan
28from .ref import DatasetRef
31@dataclass(frozen=True, eq=True)
32class DatasetAssociation:
33 """Class representing the membership of a dataset in a single collection.
35 One dataset is associated with one collection, possibly including
36 a timespan.
37 """
39 __slots__ = ("ref", "collection", "timespan")
41 ref: DatasetRef
42 """Resolved reference to a dataset (`DatasetRef`).
43 """
45 collection: str
46 """Name of a collection (`str`).
47 """
49 timespan: Optional[Timespan]
50 """Validity range of the dataset if this is a `~CollectionType.CALIBRATION`
51 collection (`Timespan` or `None`).
52 """
54 def __lt__(self, other: Any) -> bool:
55 # Allow sorting of associations
56 if not isinstance(other, type(self)):
57 return NotImplemented
59 return (self.ref, self.collection, self.timespan) < (other.ref, other.collection, other.timespan)